I have a 07 H3 recently I have been feeling a clunking when going over bumps and I can feel it under my drivers feet. I have checked everything and even replaced front shocks with new Bilsteins. I can't find anything wrong, it does it when I go over bumps. Actually it feels the same as my old f250 super duty when the control arm bushings went bad on sway bar. I have noticed it more when bumps are hit turning right. It is leveled with extend bump stops, it is not my axle shafts CV joints. It presently has 88k on it. anybody else have this show up?

 

Read the sticky Post in this section, that is why it is stuck there.

Steering shaft .... you can read the recent post by Hummerz to bring that up to date.

https://www.hummerforums.com/forum/h...g-shaft-33155/

 

There are also 2 body mounts on the driver side right under the front door. You may want to check for any slop there also.

 

I did check the body mounts for slop and they were ok that is exactly where I am feeling the clunk. I looked at those u-joints on steering and they seem fine there is no slop or clunking in the steering at all

 

My hummer started knocking like you mentioned after I had raised the front end... I was at the maximum front t-bars of 23-1/2". I dropped it down to 23 and I have not heard the knocking for a few months. My front drivers shaft seal also stopped leaking.

 

Side diff mounts can do that.

 

I found problem, my ball joints I drilled and tapped the upper joints, clunk noises gone

 

You did what ???

 

WTF?
Seriously, if the noise is from the upbj's... JUST REPLACE THEM! No mods needed or you could end up like this:

 

Yes I added grease fittings to the upper joints drilled and tapped the upper a frames, noise is gone I'm replacing the lower with grease able joint and installing sway bar links with grease fittings and u-joints with grease fittings